/*
 * Copyright 2017-2025 noear.org and authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.noear.solon.data.sqlink.base.metaData;

import java.util.*;
import java.util.concurrent.ConcurrentHashMap;

/**
 * 元数据缓存
 *
 * @author kiryu1223
 * @since 3.0
 */
public class MetaDataCache {
    private MetaDataCache() {
    }

    private static final Map<Class<?>, MetaData> metaDataCache = new ConcurrentHashMap<>();

    /**
     * 获取元数据
     *
     * @param c 元数据类型
     */
    public static MetaData getMetaData(Class<?> c) {
        if (!metaDataCache.containsKey(c)) {
            metaDataCache.put(c, new MetaData(c));
        }
        return metaDataCache.get(c);
    }

    /**
     * 获取多个元数据
     *
     * @param c 元数据类型集合
     */
    public static List<MetaData> getMetaData(Collection<Class<?>> c) {
        List<MetaData> metaDataList = new ArrayList<>(c.size());
        for (Class<?> aClass : c) {
            metaDataList.add(getMetaData(aClass));
        }
        return metaDataList;
    }
}
